GB957674A - Improvements relating to temperature-sensitive electric switches - Google Patents

Improvements relating to temperature-sensitive electric switches

Info

Publication number
GB957674A
GB957674A GB1684560A GB1684560A GB957674A GB 957674 A GB957674 A GB 957674A GB 1684560 A GB1684560 A GB 1684560A GB 1684560 A GB1684560 A GB 1684560A GB 957674 A GB957674 A GB 957674A
Authority
GB
United Kingdom
Prior art keywords
strip
bimetallic
carries
carbon resistor
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1684560A
Inventor
Kenneth William Pink
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
George H Scholes & Co Ltd
Original Assignee
George H Scholes & Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by George H Scholes & Co Ltd filed Critical George H Scholes & Co Ltd
Priority to GB1684560A priority Critical patent/GB957674A/en
Publication of GB957674A publication Critical patent/GB957674A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/04—Bases; Housings; Mountings

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

957,674. Thermal switches. GEORGE H. SCHOLES & CO. Ltd. Aug. 11, 1981 [May 12 1960], No. 16845/60. Heading H2B. A thermal switch includes a casing having a substantially rectangular base outline within which a bimetallic or other compound actuating strip is disposed substantially diagonally of the rectangle. Bimetallic strip 1, Fig. 2, carries a contact 12 biased towards a fixed contact 13, the attraction of a permanent magnet 9 on an armature 8 carried by the strip 1 ensuring snap closing and opening of the contacts. Strip 1 is hinged at 3 and a lateral extension 2a therefrom carries a control dial 6 for adjusting the operating temperature by varying the biasing force on the strip 1. An earthing strip 19, Fig. 1, connects the adjustment mechanism with one of the ferrules 20 for receiving the cover-fixing screws. A carbon resistor 16 may be provided for increasing the sensitivity of the switch where the load current is low, i.e. up to 10 amps., by acting as an anticipatory heater. One end of the carbon resistor 16 is connected to an external terminal 17 and so can be disconnected as required.
GB1684560A 1960-05-12 1960-05-12 Improvements relating to temperature-sensitive electric switches Expired GB957674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1684560A GB957674A (en) 1960-05-12 1960-05-12 Improvements relating to temperature-sensitive electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1684560A GB957674A (en) 1960-05-12 1960-05-12 Improvements relating to temperature-sensitive electric switches

Publications (1)

Publication Number Publication Date
GB957674A true GB957674A (en) 1964-05-13

Family

ID=10084722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1684560A Expired GB957674A (en) 1960-05-12 1960-05-12 Improvements relating to temperature-sensitive electric switches

Country Status (1)

Country Link
GB (1) GB957674A (en)

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